CN111791583A

CN111791583A - Circulation ink supply mechanism for printing machine

Info

Publication number: CN111791583A
Application number: CN202010695416.5A
Authority: CN
Inventors: 马全有; 汤伟; 汤腾飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-10-20

Abstract

The invention relates to the technical field of printing, in particular to a circulating ink supply mechanism for a printing machine, which comprises a workbench, an ink return duct arranged on the lower side of the middle part of the workbench, a printing mechanism arranged on the left part of the upper side of the workbench and an ink supply mechanism arranged on the right part of the upper side of the workbench, wherein a filter screen is clamped on the upper side of the ink return duct, a pressure sensor is arranged on the lower side of the right part of the filter screen, and a guide pipe is vertically arranged in the right part of the ink return duct; according to the invention, the plastic hollow ball floats on the ink liquid level of the ink return duct, and the plastic hollow ball touches the pressure sensor, so that the ink quantity in the ink return duct is automatically recycled, the long-time idle running of the ink return air drive pump is avoided, the working pressure of workers is reduced, meanwhile, the device is in contact with the printing roller through a plurality of groups of rotary spiral smearing brushes, so that the ink is evenly smeared on the circumferential side wall of the printing roller, the printing effect is improved, and the device is convenient for replacing the spiral smearing brushes.

Description

Circulation ink supply mechanism for printing machine

Technical Field

The invention relates to the technical field of printing, in particular to a circulating ink supply mechanism for a printing machine.

Background

A printer is a machine that prints text and images; modern printing presses typically consist of mechanisms for plating, inking, stamping, feeding (including folding), etc. The working principle is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred on the paper or other printing material (such as textile, metal plate, plastics, leather, wood plate, glass and ceramic) so as to reproduce the same printed matter as the printing plate. The invention and the development of the printing machine play an important role in the propagation of human civilization and culture.

At present, chinese patent No. 201920640781.9 discloses an ink supply mechanism for a holographic coding image printing machine, which comprises a fixed bottom plate, wherein the ink supply mechanism is fixedly installed on one side of the upper surface of the fixed bottom plate, the printing mechanism is fixedly installed on one side of the ink supply mechanism, a connecting column is fixedly installed on the upper surface of the fixed bottom plate and positioned between the ink supply mechanism and the printing mechanism, a working plate is fixedly connected to the upper side panel of the connecting column, an ink outlet pipe is fixedly installed on the working plate close to one side panel of the printing mechanism, a plurality of uniformly distributed ink outlet nozzles are fixedly installed on the outer surface of the ink outlet pipe, a filter screen is fixedly installed between the connecting column and the printing; the ink delivered by the secondary air-driven liquid pump enters the ink storage box through the ink return pipe, so that the ink is recycled, the resource waste is reduced, and the printing cost is reduced.

But the following defects and shortcomings exist in the implementation process:

the device can't estimate the chinese ink volume in the ink fountain automatically, if the liquid pump is driven to second grade gas all the time to work, then causes the long-time "idle running" of second grade gas drive liquid pump easily, and then not only reduces the life of second grade gas drive liquid pump, causes the waste of charges of electricity moreover, if need staff's discontinuity open second grade gas drive liquid pump, then increases staff's operating pressure, the device can't be with chinese ink more even scribble on the printing roller simultaneously, influence the printing effect then.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a circulating ink supply mechanism for a printing machine, which can effectively solve the problems that the prior art cannot automatically measure the amount of ink in an ink return hopper, if a secondary air-driven liquid pump works all the time, the secondary air-driven liquid pump is easy to idle for a long time, the service life of the secondary air-driven liquid pump is further shortened, the waste of electric charges is caused, if a worker needs to intermittently start the secondary air-driven liquid pump, the working pressure of the worker is increased, and meanwhile, the device cannot more uniformly coat the ink on a printing roller, so that the printing effect is influenced.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a circulating ink supply mechanism for a printer comprises a workbench, an ink return hopper arranged on the lower side of the middle part of the workbench, a printing mechanism arranged on the left part of the upper side of the workbench, and an ink supply mechanism arranged on the right part of the upper side of the workbench, wherein a filter screen is clamped on the upper side of the ink return hopper, a pressure sensor is arranged on the lower side of the right part of the filter screen, a guide pipe is vertically arranged in the right part of the ink return hopper, a plurality of groups of guide holes are uniformly formed in the left side wall of the guide pipe, plastic hollow balls are arranged in the guide pipe inner sleeve, an ink return mechanism is arranged between the ink return hopper and the ink supply mechanism, an smearing mechanism is arranged between the printing mechanism and the ink supply mechanism, the smearing mechanism comprises a smearing shaft rotatably connected to the upper side of the left part of the workbench, a smearing sleeve clamped on the outer side of the circumference of the smearing shaft, a plurality of groups of spiral smearing brushes, scribble axle rear portion circumference lateral wall and be provided with the backplate, scribble axle rear end portion and run through the rotation through the bearing frame and connect on back support piece upper portion, scribble the axle front end portion and cup jointed the axle sleeve, the axle sleeve front and back end is provided with thread bush and preceding baffle respectively, preceding support piece upper portion is provided with the thread tightening cover with thread bush screw-thread fit, workstation left part rear side is provided with actuating mechanism.

The utility model discloses a set up the ink box on the workstation right part, set up and drive the liquid pump at the confession ink gas of ink box upside, set up the ink inlet pipe on ink box right side, through the fixed inkjet frame that sets up in workstation middle part top of support frame and evenly set up the left ink jet nozzle in inkjet frame, supply ink gas to drive liquid pump upside fixedly connected with and supply ink pipe, supply ink pipe other end and inkjet frame fixed connection and communicate with each other with a plurality of groups ink jet nozzle, it is provided with the valve to advance the ink pipe right-hand member, drives the liquid pump through supplying ink gas, transports the chinese ink in the ink box to the ink jet nozzle in through supplying ink pipe to finally follow the even blowout of ink jet nozzle.

Ink return mechanism includes that it drives the liquid pump and fixed connection returns the first ink return pipe of ink marker bottom to return the ink gas through pump frame fixed connection at workstation right part downside, first ink return pipe right-hand member drives the liquid pump left side with returning the ink gas and is connected and communicate with each other, it drives the liquid pump right side and returns the ink pipe through the second and is connected and communicate with each other with advancing the ink pipe, drive the liquid pump through returning the ink gas, make the chinese ink that returns in the ink marker return in the ink marker get into in the ink pipe left part through first ink return pipe and second return the ink pipe, and finally get into the china ink case, realize the recovery and the cyclic utilization of chinese ink.

Scribble axle circumference lateral wall and evenly seted up a plurality of groups draw-in grooves, the draw-in groove front end extends to the preceding tip of scribbling the axle, scribble cover circumference inside wall and evenly be provided with draw-in groove joint complex card strip, through the cooperation of draw-in groove with card strip, realize scribbling the cover joint and scribble epaxially to be convenient for scribble the cover and take off from smearing epaxially.

The circumference inside wall that the fixed cover of screw thread is close to and paints axle one side is provided with the annular ring, and spacing through the annular ring for the fixed cover of screw thread can't further to painting axle one side spiral, and then is scribbling the axle and rotate the in-process, the fixed cover of screw thread can not appear and continue the rotation.

The driving mechanism comprises a smearing motor arranged on the rear side of the left part of the workbench, a first belt wheel arranged at the output end of the smearing motor and a second belt wheel arranged at the rear end of a smearing shaft, the second belt wheel is in transmission fit with the first belt wheel through a belt, the second belt wheel drives the first belt wheel through the smearing motor to rotate, the second belt wheel is driven to rotate through the transmission effect of the belt, and then the rotation of the smearing shaft is realized.

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

according to the invention, the plastic hollow ball floats on the ink liquid level of the ink return duct, and the plastic hollow ball touches the pressure sensor, so that the ink quantity in the ink return duct is automatically recycled, the long-time idle running of the ink return air drive pump is avoided, the working pressure of workers is reduced, meanwhile, the device is in contact with the printing roller through a plurality of groups of rotary spiral smearing brushes, so that the ink is evenly smeared on the circumferential side wall of the printing roller, the printing effect is improved, and the device is convenient for replacing the spiral smearing brushes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic diagram of a front side view angle configuration of the present invention;

FIG. 2 is a schematic diagram of a rear side view angle structure according to the present invention;

FIG. 3 is a schematic cross-sectional view of the ink fountain according to the present invention;

FIG. 4 is a schematic cross-sectional view of the application mechanism of the present invention;

FIG. 5 is a schematic view of the structure of the coating shaft of the present invention;

FIG. 6 is a schematic view of the structure of the coating sleeve and the spiral coating brush of the present invention;

FIG. 7 is a schematic view of the sleeve construction of the present invention;

the reference numerals in the drawings denote: 1-a workbench; 2-ink return duct; 3, filtering by using a filter screen; 4-a pressure sensor; 5-a catheter; 6-guide holes; 7-plastic hollow spheres; 8-smearing shaft; 9-smearing sleeve; 10-spiral smearing brush; 11-a front support; 12-rear support; 13-a rear baffle; 14-a shaft sleeve; 15-thread bushing; 16-a front baffle; 17-a threaded fixation sleeve; 18-an ink tank; 19-supplying ink gas to drive liquid pump; 20-ink jet frame; 21-ink jet nozzle; 22-ink return gas displacement pump; 23-a card slot; 24-a card strip; 25-an annular ring; 26-a painting motor; 27-a first pulley; 28-a second pulley; 29-belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

A circulating ink supply mechanism for a printer according to the present embodiment, with reference to fig. 1 to 7: comprises a workbench 1, an ink return duct 2 arranged at the lower side of the middle part of the workbench 1, a printing mechanism arranged at the left part of the upper side of the workbench 1 and an ink supply mechanism arranged at the right part of the upper side of the workbench 1, wherein a filter screen 3 is clamped at the upper side of the ink return duct 2, a pressure sensor 4 is arranged at the lower side of the right part of the filter screen 3, a guide pipe 5 is vertically arranged in the right part of the ink return duct 2, a plurality of groups of guide holes 6 are uniformly arranged on the left side wall of the guide pipe 5, a plastic hollow ball 7 is sleeved in the guide pipe 5, the ink return mechanism is arranged between the ink return duct 2 and the ink supply mechanism, a smearing mechanism is arranged between the printing mechanism and the ink supply mechanism and comprises a smearing shaft 8 rotationally connected to the upper side of the left part of the workbench 1, a smearing sleeve 9 clamped outside the circumference of the smearing shaft 8, a plurality of groups of spiral smearing brushes 10 uniformly arranged outside the circumference of the smearing, the rear circumferential side wall of the rear part of the smearing shaft 8 is provided with a rear baffle 13, the rear end part of the smearing shaft 8 is connected to the upper part of the rear support piece 12 in a penetrating and rotating mode through a bearing seat, the front end part of the smearing shaft 8 is sleeved with a shaft sleeve 14, the front end and the rear end of the shaft sleeve 14 are respectively provided with a threaded sleeve 15 and a front baffle 16, the upper part of the front support piece 11 is provided with a threaded fixing sleeve 17 in threaded fit with the threaded sleeve 15, and the rear side of the left.

The ink box 18 arranged at the right part of the workbench 1, the ink supply gas drive pump 19 arranged at the upper side of the ink box 18, the ink inlet pipe arranged at the right side of the ink box 18, the ink jet frame 20 fixedly arranged above the middle part of the workbench 1 through a support frame and the ink jet nozzles 21 uniformly arranged at the left side of the ink jet frame 20, the upper side of the ink supply gas drive pump 19 is fixedly connected with an ink supply conduit, the other end of the ink supply conduit is fixedly connected with the ink jet frame 20 and communicated with a plurality of groups of ink jet nozzles 21, the right end of the ink inlet pipe is provided with a valve, and ink in the ink box 18 is transported to the ink jet nozzles 21 through the ink supply conduit by the ink supply gas drive pump 19 and is finally uniformly ejected from the.

The ink return mechanism comprises an ink return air driving pump 22 fixedly connected to the lower side of the right part of the workbench 1 through a pump frame and a first ink return guide pipe fixedly connected to the bottom of the ink return duct 2, the right end of the first ink return guide pipe is connected and communicated with the left side of the ink return air driving pump 22, the right side of the ink return air driving pump 22 is connected and communicated with an ink inlet pipe through a second ink return guide pipe, and the ink in the ink return duct 2 enters the left part of the ink inlet pipe through the first ink return guide pipe and the second ink return guide pipe and finally enters the ink tank 18 through the ink return air driving pump 22, so that the recovery and the cyclic utilization of the ink are realized.

Wherein, paint 8 circumference lateral walls of axle and evenly seted up a plurality of groups draw-in groove 23, draw-in groove 23 front end extends to paints the preceding tip of axle 8, paints 9 circumference inside walls of cover evenly be provided with draw-in groove 23 joint complex card strip 24, through draw-in groove 23 and card strip 24's cooperation, realizes paining 9 joints of cover and is paining on axle 8 to be convenient for paint cover 9 and take off from smearing axle 8.

Wherein, the fixed cover 17 of screw thread is close to the circumference inside wall of paining axle 8 one side and is provided with annular ring 25, and spacing through annular ring 25 for the fixed cover 17 of screw thread can not further to paining axle 8 one side spiral, and then scribbling the axle 8 and rotating the in-process, the fixed cover 17 of screw thread can not appear and continue the rotation.

Wherein, actuating mechanism is including setting up at the motor 26 of paining of workstation 1 left part rear side, setting at the first band pulley 27 of paining the motor 26 output and setting at the second band pulley 28 of paining axle 8 rear end, and second band pulley 28 passes through belt 29 and first band pulley 27 transmission fit, through paining the rotation that motor 26 drove first band pulley 27 to through the transmission effect of belt 29, drive the rotation of second band pulley 28, and then realize paining the rotation of axle 8.

The shaft sleeve 14 is matched with the thread of the thread fixing sleeve 17 through the thread sleeve 15, so that the shaft sleeve 14 is fixedly connected to the upper part of the front support piece 11, the front end of the smearing shaft 8 is sleeved in the shaft sleeve 14, the front end of the smearing shaft 8 is rotatably connected with the upper part of the front support piece 11, the rear end of the smearing shaft 8 is rotatably connected to the upper part of the rear support piece 12 through the bearing seat, the smearing shaft 8 is rotatably connected between the front support piece 11 and the rear support piece 12, the smearing shaft 8 is clamped on the smearing shaft 8 through the smearing sleeve 9, and the smearing sleeve 9 is fixed on the smearing shaft 8 between the front baffle 16 and the rear baffle 13 through the front baffle 16 and the rear baffle 13; when the driving mechanism drives the smearing shaft 8 to rotate, the smearing sleeve 9 drives the spiral smearing brushes 10 to rotate, and when the ink supply mechanism sprays ink on a plurality of groups of spiral smearing brushes 10, the ink is contacted with the printing roller through the spiral smearing brushes 10 along with the rotation of the spiral smearing brushes 10, so that the ink is evenly smeared on the circumferential side wall of the printing roller, and the printing effect is improved; when the ink sprayed to the spiral smearing brush 10 from the ink jet nozzle 21 partially falls and passes through the filter of the filter screen 3 and enters the ink return duct 2, the liquid level of the ink in the ink return duct 2 continuously rises along with the continuous accumulation of the ink in the ink return duct 2, and the ink in the ink return duct 2 enters the guide pipe 5 through the guide hole 6, so that the plastic hollow ball 7 is driven to float upwards in the guide pipe 5 and be located on the liquid level of the ink in the ink return duct 2, when the plastic hollow ball 7 contacts the pressure sensor 4, the pressure sensor 4 transmits a signal to a single chip of the device, and if the pressure of the plastic hollow ball 7 on the pressure sensor 4 exceeds a certain limit value, the single chip controls the ink return air driving pump 22 of the ink return mechanism to be started, so that the ink in the ink return duct 2 is pumped back to the ink tank 18, and the recovery and the cyclic utilization of the ink are realized.

When the spiral smearing brush 10 is replaced, the shaft sleeve 14 is rotated firstly, so that the thread sleeve 15 rotates and moves in the direction away from the thread fixing sleeve 17, the shaft sleeve 14 is taken out from the thread fixing sleeve 17, the smearing sleeve 9 is taken out from the smearing shaft 8 in the direction of the thread fixing sleeve 17, then a new group of smearing sleeves 9 are taken out, new spiral smearing brushes 10 are arranged on the outer circumferential wall of the smearing sleeves 9, the clamping strips 24 of the smearing sleeves 9 correspond to the clamping grooves 23 on the smearing shaft 8, the smearing sleeves 9 are sleeved on the smearing shaft 8 in the direction of the rear baffle 13, and the thread sleeves 15 are connected onto the thread fixing sleeve 17 in a threaded mode, so that the fixed connection between the shaft sleeve 14 and the front supporting piece 11 is achieved, the front end of the smearing shaft 8 is sleeved in the shaft sleeve 14, and the spiral smearing brushes 10 are replaced.

The device not only floats on the chinese ink liquid level of ink return duct 2 through plastics hollow ball 7, and touch pressure sensor 4 through plastics hollow ball 7, the realization is carried out automatic recovery cyclic utilization to the chinese ink volume in the ink return duct 2, thereby not only avoid returning the long-time "idle running" of ink gas drive pump 22, and reduce staff's operating pressure, the contact of brush 10 and printing roller is paintd through rotatory a plurality of groups spiral to the device simultaneously, thereby even the painting of chinese ink is at the circumference lateral wall of printing roller, improve the printing effect, and the device is convenient for scribble brush 10 with trading the spiral.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. The utility model provides a circulation ink feed mechanism for printing machine, includes workstation (1), sets up in workstation (1) middle part downside return ink fountain (2), set up the printing mechanism in workstation (1) upside left part and set up the ink feed mechanism in workstation (1) upside right part, its characterized in that: the upper side of the ink return duct (2) is connected with a filter screen (3) in a clamping manner, the lower side of the right part of the filter screen (3) is provided with a pressure sensor (4), a guide pipe (5) is vertically arranged in the right part of the ink return duct (2), a plurality of groups of guide holes (6) are uniformly formed in the left side wall of the guide pipe (5), a plastic hollow ball (7) is sleeved in the guide pipe (5), an ink return mechanism is arranged between the ink return duct (2) and the ink supply mechanism, an smearing mechanism is arranged between the printing mechanism and the ink supply mechanism, the smearing mechanism comprises a smearing shaft (8) which is rotatably connected to the upper side of the left part of the workbench (1), a smearing sleeve (9) which is connected to the outer side of the circumference of the smearing shaft (8), a plurality of groups of spiral smearing brushes (10) which are uniformly arranged on the outer side of the circumference of the smearing sleeve (9), and a front supporting, a rear baffle (13) is arranged on the circumferential side wall of the rear part of the smearing shaft (8), the rear end part of the smearing shaft (8) is connected to the upper part of the rear supporting piece (12) in a penetrating and rotating mode through a bearing seat, a shaft sleeve (14) is sleeved on the front end part of the smearing shaft (8), a threaded sleeve (15) and a front baffle (16) are respectively arranged at the front end and the rear end of the shaft sleeve (14), a threaded fixing sleeve (17) in threaded fit with the threaded sleeve (15) is arranged on the upper part of the front supporting piece (11), and a driving mechanism is arranged on the rear side of the;

the ink supply mechanism comprises an ink box (18) arranged at the right part of the workbench (1), an ink supply gas drive pump (19) arranged at the upper side of the ink box (18), an ink inlet pipe arranged at the right side of the ink box (18), an ink jet frame (20) fixedly arranged above the middle part of the workbench (1) through a support frame and ink jet nozzles (21) uniformly arranged at the left side of the ink jet frame (20), an ink supply pipe is fixedly connected at the upper side of the ink supply gas drive pump (19), the other end of the ink supply pipe is fixedly connected with the ink jet frame (20) and communicated with a plurality of groups of ink jet nozzles (21), and a valve is arranged at the right end of the ink inlet pipe;

the ink return mechanism comprises an ink return air driving pump (22) fixedly connected to the lower side of the right part of the workbench (1) through a pump frame and a first ink return guide pipe fixedly connected to the bottom of the ink return duct (2), the right end of the first ink return guide pipe is communicated with the left side of the ink return air driving pump (22), and the right side of the ink return air driving pump (22) is communicated with an ink inlet pipe through a second ink return guide pipe;

scribble axle (8) circumference lateral wall and evenly seted up a plurality of groups draw-in groove (23), draw-in groove (23) front end extends to the preceding tip of scribbling axle (8), it evenly is provided with card strip (24) with draw-in groove (23) joint complex to scribble cover (9) circumference inside wall.

2. A circulating inking unit for printing machines, according to claims 1 and 2, characterised in that the circumferential internal side wall of said threaded fixing sleeve (17) on the side close to the axis of application (8) is provided with an annular ring (25).

3. A circulating inking mechanism for printing machines according to claims 1 and 2, characterised in that said driving mechanism comprises an application motor (26) arranged at the rear left of the table (1), a first pulley (27) arranged at the output of the application motor (26) and a second pulley (28) arranged at the rear end of the application shaft (8), the second pulley (28) being in driving engagement with the first pulley (27) through a belt (29).